Automobile hydraulic power steering device

Abstract

The utility model belongs to the technical field of hydraulic power-assisted steering devices, and particularly relates to an automobile hydraulic power-assisted steering device which comprises a steering rod, the steering rod is fixedly connected with a steering block, the steering block is rotatably connected with a driving block, the bottom of the driving block is fixedly connected with a connecting block, and a driving shaft is integrally formed on the connecting block. The driving shaft rotates in the oil cover, and the surface of the oil cover is communicated with a hydraulic oil inlet pipe and a hydraulic oil return pipe which are inclined and opposite to each other. The steering block and the driving block of the universal joint structure are matched with hydraulic power assistance, so that steering resistance is greatly reduced, driving operation is easier, the rotating ring of the driving shaft and a stable connecting structure improve operation stability and control accuracy, an anti-siphon valve of a hydraulic oil return pipe ensures oil pressure stability, and system reliability is enhanced. The quick sealing joint is convenient to maintain, the driving experience is effectively improved through the design, the driving safety is improved, and better performance is brought to an automobile power-assisted steering system.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic power steering devices, specifically an automotive hydraulic power steering device. Background Technology

[0002] The evolution of steering systems has been crucial in the development of automobiles. Early cars mostly used purely mechanical steering structures, requiring drivers to exert considerable physical strength to turn the steering wheel and steer the wheels. This could easily lead to driver fatigue, especially when driving large vehicles or for extended periods, severely impacting the driving experience and road safety.

[0003] With technological advancements, hydraulic power steering technology has emerged to reduce the steering burden on drivers. Traditional mechanical steering systems lack power assistance, resulting in high steering resistance, especially at low speeds and during frequent turns (such as parking). Drivers need to apply tremendous force to control the steering wheel, significantly increasing the difficulty of operation. At high speeds, excessive road feedback can also make steering wheel control unstable, posing a challenge to precise vehicle control.

[0004] Hydraulic power steering utilizes hydraulic principles, using engine power to drive a hydraulic pump that generates high-pressure hydraulic fluid. Through a complex network of pipes, control valves, and power steering cylinders, this fluid works in concert to provide precise assistance to the steering system based on steering wheel inputs. This technology has significantly improved steering feel, allowing drivers to easily and accurately turn the steering wheel, whether maneuvering slowly in congested city traffic or changing lanes at high speeds on highways. It dramatically enhances driving comfort and handling stability, laying a solid foundation for convenient and safe driving in modern automobiles.

[0005] At the same time, the automotive industry is constantly moving towards lightweighting, high performance and intelligence, which has put forward many new requirements for hydraulic power steering devices, such as higher energy efficiency, smaller space occupation, stronger reliability and compatibility with emerging electronic control systems, prompting continuous innovation and research and development in this field to meet the growing market demand. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides an automotive hydraulic power steering device that solves the problems mentioned in the background section.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0010] A hydraulic power steering device for automobiles includes a steering rod, which is fixedly connected to a steering block. The steering block is rotatably connected to a drive block. A connecting block is fixedly connected to the bottom of the drive block. The connecting block is integrally formed with a drive shaft. The drive shaft rotates within an oil cover. Two inclined, opposing hydraulic oil inlet pipes and a hydraulic oil return pipe are connected to the surface of the oil cover. A steering rod is fixedly connected to the bottom of the drive shaft. The steering rod is rotatably sleeved in a connecting housing. The connecting housing is bolted to the oil cover. The steering rod has a section of steering teeth that mesh with a horizontally rotating pull rod. The pull rod is movably sleeved on a mounting housing.

[0011] Furthermore, the steering block and the drive block are universal joint structures.

[0012] Furthermore, the drive shaft is provided with several rotating rings at a position within the oil cover.

[0013] Furthermore, the mounting shell and the connecting shell are integrally formed and are inclined.

[0014] Furthermore, the rotating rod engaged by the steering gear reciprocates.

[0015] Furthermore, the end of the hydraulic oil inlet pipe furthest from the oil cover is connected to the hydraulic pump outlet via a quick-sealing connector, and the hydraulic pump is connected to an oil storage tank.

[0016] Furthermore, the end of the hydraulic oil return pipe furthest from the oil cover is connected to the return port of the oil storage tank. An anti-siphon valve is installed at the return port. When the vehicle is in complex road conditions or in a state of frequent start-stop, the anti-siphon valve prevents abnormal flow of hydraulic oil in the oil storage tank due to siphon effect, ensuring that the hydraulic oil can flow back to the oil storage tank smoothly and maintain the normal oil pressure balance of the entire hydraulic power assist system.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides a hydraulic power steering device for automobiles, which has the following advantages:

[0019] This invention, with its universal joint structure steering block and drive block, combined with hydraulic power assist, greatly reduces steering resistance, making driving easier. The rotating ring of the drive shaft and the stable connection structure improve operational stability and control precision. The anti-siphon valve of the hydraulic oil return pipe ensures stable oil pressure and enhances system reliability. In addition, the quick-sealing joint facilitates maintenance. These designs effectively improve the driving experience, enhance driving safety, and bring better performance to the automotive power steering system. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0022] Figure 3 This is a rear-view three-dimensional structural diagram of the present invention.

[0023] In the diagram: 1. Steering rod; 2. Steering block; 3. Drive block; 4. Connecting block; 5. Drive shaft; 6. Oil cover; 7. Hydraulic oil inlet pipe; 8. Hydraulic oil return pipe; 9. Connecting shell; 10. Steering rod; 11. Steering gear; 12. Tie rod; 13. Mounting shell. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example

[0026] like Figure 1 As shown, an embodiment of the present invention provides an automotive hydraulic power steering device, including a steering rod 1;

[0027] Steering lever 1 is fixedly connected to steering block 2. When the driver turns steering lever 1, steering block 2 rotates accordingly, transmitting the driver's operation to subsequent components.

[0028] like Figure 1 As shown, the steering block 2 is rotatably connected to the drive block 3, and the two are universal joint structures, which can flexibly transmit power. The bottom of the drive block 3 is fixedly connected to the connecting block 4, and the connecting block 4 is integrally formed with the drive shaft 5. The drive shaft 5 is rotatably installed in the oil cover 6. When rotating in the oil cover 6, the several rotating rings set on the drive shaft 5 can reduce friction and ensure smooth rotation.

[0029] The surface of the oil cover 6 is connected to two inclined, opposing hydraulic oil inlet pipes 7 and hydraulic oil return pipes 8. The end of the hydraulic oil inlet pipe 7 furthest from the oil cover 6 is connected to the hydraulic pump outlet via a quick-seal connector. The hydraulic pump draws oil from the reservoir, pressurizes it, and then delivers the oil to the oil cover 6. The end of the hydraulic oil return pipe 8 furthest from the oil cover 6 is connected to the return port of the reservoir. An anti-siphon valve is installed at the return port to prevent abnormal flow of hydraulic oil in the reservoir when the vehicle is in complex road conditions or when it is frequently started and stopped, ensuring smooth return of hydraulic oil and maintaining normal oil pressure balance in the system.

[0030] The bottom of the drive shaft 5 is fixedly connected to the steering rod 10, which is rotatably sleeved in the connecting shell 9. The connecting shell 9 and the oil cover 6 are fastened together by bolts to ensure structural stability.

[0031] The steering rod 10 is provided with a steering tooth 11, which meshes with the horizontally rotating tie rod 12. The tie rod 12 is movably sleeved on the mounting housing 13. The mounting housing 13 is integrally formed with the connecting housing 9 and is inclined, so that the tie rod 12 can reciprocate under the drive of the steering tooth 11, thereby realizing the steering operation of the vehicle.

[0032] When the driver turns the steering lever 1, the steering block 2 drives the drive block 3 to rotate. The drive block 3, through the connecting block 4, causes the drive shaft 5 to rotate within the oil cover 6. Simultaneously, the hydraulic pump, driven by the engine, pressurizes the hydraulic oil in the reservoir and delivers it to the oil cover 6 via the hydraulic oil inlet pipe 7. The hydraulic oil in the oil cover 6 provides assistance for the rotation of the drive shaft 5, which in turn drives the steering lever 10 to rotate. The steering gear 11 on the steering lever 10 meshes with the tie rod 12, causing the tie rod 12 to reciprocate on the mounting housing 13, thus achieving vehicle steering. During vehicle steering, the hydraulic oil flows back to the reservoir through the hydraulic oil return pipe 8. The anti-siphon valve at the return port ensures a stable return of hydraulic oil, maintaining stable system oil pressure.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydraulic power steering apparatus for an automobile, comprising a steering shaft (1), characterized in that: The direction rod (1) is fixedly connected with a steering block (2), the steering block (2) is rotatably connected with a driving block (3), the bottom of the driving block (3) is fixedly connected with a connecting block (4), the connecting block (4) is integrally formed with a driving shaft (5), the driving shaft (5) is rotatable in an oil cover (6), the surface of the oil cover (6) is communicated with two inclined opposite hydraulic oil inlet pipes (7) and hydraulic oil return pipes (8), the bottom of the driving shaft (5) is fixedly connected with a steering rod (10), the steering rod (10) is rotatably sleeved in a connecting shell (9), the connecting shell (9) is bolted and fixedly connected with the oil cover (6), the steering rod (10) is provided with a steering gear (11), the steering gear (11) is engaged with a horizontal rotating pull rod (12), the pull rod (12) is movably sleeved on a mounting shell (13).

2. The hydraulic power steering apparatus for a vehicle according to claim 1, wherein: The steering block (2) and the driving block (3) are universal joint structures.

3. The hydraulic power steering apparatus of claim 1, wherein: The driving shaft (5) is provided with a plurality of rotating rings at positions in the oil cover (6).

4. The hydraulic power steering apparatus of claim 1, wherein: The mounting shell (13) and the connecting shell (9) are integrally formed and are inclinedly arranged.

5. The hydraulic power steering apparatus of claim 1, wherein: The rotating pull rod (12) engaged with the steering gear (11) performs reciprocating motion.

6. The hydraulic power steering apparatus of claim 1 wherein: The hydraulic oil inlet pipe (7) is connected with the oil outlet of a hydraulic pump through a quick sealing joint at the end away from the oil cover (6), and the hydraulic pump is connected with an oil storage tank.

7. The hydraulic power steering apparatus of claim 1, wherein: The hydraulic oil return pipe (8) is connected to the oil return port of the oil storage tank at the end away from the oil cover (6), and an anti-siphon valve is arranged at the oil return port, so that when the vehicle is in a complex road condition or a frequent start-stop state, the anti-siphon valve can prevent the hydraulic oil in the oil storage tank from flowing abnormally due to siphon effect, ensure that the hydraulic oil can flow back to the oil storage tank smoothly, and maintain the normal oil pressure balance of the entire hydraulic power-assisted system.

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